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Ring and Ball Gravesande

Build To Order
Original price $34.99
Current price $22.23

    An apparatus for demonstrating thermal expansion, comprising a captive brass ball secured to mounted brass ring by chain. Ring mounted on rod with wooden handle. Ball passes through the ring when cold but will not pass through after being heated. Ball dia. 19 mm

    Please note, this item is "Build to Order" and will take up to 60 days to ship after placing your order.